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driving aids

A driving assistance and target position technology, applied in the direction of automatic starting device, brake, etc., can solve the problems of driver's sense of incongruity, lowering, unable to calculate speed, etc., and achieve the effect of improving safety.

Active Publication Date: 2016-06-22
TOYOTA JIDOSHA KK
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, conventional driving assistance devices avoid collisions by judging whether there is a collision when traveling on the current predicted road, and cannot calculate how much to reduce the speed to avoid collisions, how much to dodge to avoid collisions, etc.
In addition, the collision judgment of conventional driving assistance devices largely depends on the prediction accuracy of the vehicle's future position
Therefore, when the prediction accuracy decreases (for example, when the host vehicle is accelerating, decelerating, or steering), the accuracy of collision determination may decrease.
In this case, the conventional driving assistance device may give the driver a sense of discomfort by performing unnecessary driving assistance or not performing driving assistance at the necessary timing.

Method used

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Embodiment Construction

[0026] Hereinafter, embodiments of the driving assistance device will be described with reference to the drawings.

[0027] figure 1 It is a block configuration diagram of the driving assistance device according to the embodiment. figure 2 It is a figure which shows an example of the state immediately before host vehicle SM enters an intersection. exist figure 2 In the shown intersections, the lane on which the host vehicle SM travels is indicated by LD1 , and the lane crossing the lane LD1 is indicated by LD2 . exist figure 2 , it is assumed that the lane LD1 on which the host vehicle SM travels is the priority lane. It is assumed that structures such as walls, fences, and buildings are provided at least on both sides of the traffic lane LD1. At such intersections as figure 1 As shown, a dead spot DE1 is formed on the right side of the host vehicle SM, and a dead spot DE2 is formed on the left side of the host vehicle SM. The field of view of the driver DP in the ho...

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Abstract

A driving assistance device comprising: a blind spot identifying unit that identifies a blind spot for a driver in the traveling direction of a host vehicle; and a moving object information setting unit that sets at least a moving object that may suddenly appear from the blind spot. The mobile object information of the estimated speed is used as the information related to the mobile body; the speed area calculation unit calculates the possible speed of the vehicle when moving forward in the direction of travel based on the mobile body information set by the mobile body information setting unit. The speed region of the own vehicle in contact with the moving body; the target speed calculation unit, which calculates the target speed of the own vehicle based on the speed region; That is, the dead-spot entry target speed, the current speed of the host vehicle, and the target acceleration for deceleration to create a target speed curve for decelerating the host vehicle from the current speed to the dead-spot entry target speed.

Description

technical field [0001] The invention relates to a driving assistance device. Background technique [0002] As a conventional driving assistance device, there is known a device that considers an object suddenly appearing from a blind spot when entering an intersection or the like, and performs driving assistance. For example, the driving assistance device in Patent Document 1 predicts the road ahead of the host vehicle, recognizes a blind spot for the driver in the traveling direction of the host vehicle, predicts an object that may suddenly appear from the blind spot, and detects whether the object can move. If the range overlaps with the predicted course of the host vehicle, it is determined that there is a possibility of collision, and driving assistance is performed to avoid the collision. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2006-260217 [0004] However, conventional driving assistance devices perform driving assistance by using the predicted cours...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/12B60W30/09B60W30/095
CPCB60W30/095B60T7/22B60W30/143B60W30/18154B60W2720/10B60W2720/103B60T2201/022B60W30/09
Inventor 永田真一
Owner TOYOTA JIDOSHA KK
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